Biodiversidad de insectos polinizadores y depredadores en agroecosistemas vitícolas de Mendoza, Argentina. Consideraciones para el manejo del hábitat
; Mazzitelli Ranaldi, María Emilia ; Fruitos, Andrea Beatríz
; González, Marcela ; Marcucci, Bruno
; Giusti, Romanela
; Alemanno, Valeria Romina ; del Barrio, Lucia ; Portela, José Antonio ; Debandi, Guillermo Otros responsables
Fecha
06/2019
Editorial
Universidad Nacional de Cuyo
Revista
Revista de la Facultad de Ciencias Agrarias de la Universidad Nacional de Cuyo
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ISSN
0370-4661
eISSN
1853-8665
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Español
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Resumen
El presente estudio expone los primeros resultados obtenidos acerca de la influencia del manejo de hábitat con vegetación nativa sobre los servicios ecosistémicos ofrecidos por insectos polinizadores y controladores de plagas, en viñedos de la provincia de Mendoza, Argentina. El trabajo se realizó en tres viñedos situados en Gualtallary, departamento de Tupungato, los cuales presentan corredores biológicos con diferentes proporciones de vegetación nativa y un manejo del espacio interfilar con coberturas. Con el objetivo de determinar los grupos relevantes de insectos benéficos en corredores y en viñedos, se realizaron muestreos con red entomológica. Se identificaron las especies colectadas y se estimó la riqueza, diversidad y abundancia de insectos polinizadores (Apidae, Andrenidae, Colletidae, Halictidae, Megachilidae y Syrphidae), así como de ciertos grupos de insectos depredadores (Coccinellidae, Nabidae, Reduviidae, Geocoridae, Anthocoridae, Chrysopidae, Hemerobiidae, Crabronidae y Sphecidae), que se encontraron en esos ambientes. Los resultados sugieren que el manejo de hábitat con provisión intencional de coberturas de vegetación nativa, y en particular de especies con flores atractivas para insectos, es potencialmente eficiente para favorecer la biodiversidad de los grupos funcionales estudiados y, por lo tanto, el mantenimiento de los servicios ecosistémicos ofrecidos por estos.
This study exposes first results about the influence of habitat management with native vegetation on the ecosystem services offered by pollinators and pest controller insects, in vineyards of Mendoza, Argentina. The work was carried out in three vineyards located in Gualtallary, department of Tupungato, which present biological corridors and inter-row coverings with different proportions of native vegetation. In order to determine relevant groups of beneficial insects present, samples with entomological net were taken in corridors and vineyards. The specimens captured were identified and richness, diversity and abundance of pollinating insects (Apidae, Andrenidae, Colletidae, Halictidae, Megachilidae and Syrphidae) were estimated, as well as of certain groups of predatory insects (Coccinellidae, Nabidae, Reduviidae, Geocoridae, Anthocoridae, Chrysopidae, Hemerobiidae, Crabronidae and Sphecidae), which were found in those environments. Results suggest that habitat management with intentional provision of native vegetation covers, and particularly with attracting flowering forbs, is potentially efficient to increase biodiversity of the functional groups studied and, therefore, maintain the ecosystem services offered by them.
This study exposes first results about the influence of habitat management with native vegetation on the ecosystem services offered by pollinators and pest controller insects, in vineyards of Mendoza, Argentina. The work was carried out in three vineyards located in Gualtallary, department of Tupungato, which present biological corridors and inter-row coverings with different proportions of native vegetation. In order to determine relevant groups of beneficial insects present, samples with entomological net were taken in corridors and vineyards. The specimens captured were identified and richness, diversity and abundance of pollinating insects (Apidae, Andrenidae, Colletidae, Halictidae, Megachilidae and Syrphidae) were estimated, as well as of certain groups of predatory insects (Coccinellidae, Nabidae, Reduviidae, Geocoridae, Anthocoridae, Chrysopidae, Hemerobiidae, Crabronidae and Sphecidae), which were found in those environments. Results suggest that habitat management with intentional provision of native vegetation covers, and particularly with attracting flowering forbs, is potentially efficient to increase biodiversity of the functional groups studied and, therefore, maintain the ecosystem services offered by them.
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